Missed form validation in Admin Order Address Edit route sales/order/address

app/code/Magento/Customer/Test/Mftf/Data/AddressData.xml

@@ -51,6 +51,23 @@
         <data key="default_shipping">Yes</data>
         <requiredEntity type="region">RegionTX</requiredEntity>
     </entity>
+    <entity name="US_address_TX_Wrong_Validation" type="address">
+        <data key="firstname">LoremIpsumLoremIpsumLoremIpsumLoremIpsumLoremIpsumLoremIpsumLoremIpsumLoremIpsumLoremIpsumLoremIpsumLoremIpsumLoremIpsumLoremIpsumLoremIpsumLoremIpsumLoremIpsumLoremIpsumLoremIpsumLoremIpsumLoremIpsumLoremIpsumLoremIpsumLoremIpsumLoremIpsumLoremIpsumLoremIpsum</data>
+        <data key="lastname">Doe</data>
+        <data key="company">Magento</data>
+        <array key="street">
+            <item>7700 West Parmer Lane</item>
+        </array>
+        <data key="city">Austin</data>
+        <data key="state">Texas</data>
+        <data key="country_id">US</data>
+        <data key="country">United States</data>
+        <data key="postcode">78729</data>
+        <data key="telephone">512-345-6789</data>
+        <data key="default_billing">Yes</data>
+        <data key="default_shipping">Yes</data>
+        <requiredEntity type="region">RegionTX</requiredEntity>
+    </entity>
     <entity name="US_Address_TX_Default_Billing" type="address">
         <data key="firstname">John</data>
         <data key="lastname">Doe</data>

app/code/Magento/Sales/Block/Adminhtml/Order/Create/Form/AbstractForm.php

@@ -176,8 +176,8 @@ protected function _addAttributesToForm($attributes, \Magento\Framework\Data\For
                     [
                         'name' => $attribute->getAttributeCode(),
                         'label' => __($attribute->getStoreLabel()),
-                        'class' => $attribute->getFrontendClass(),
-                        'required' => $attribute->isRequired()
+                        'class' => $this->getValidationClasses($attribute),
+                        'required' => $attribute->isRequired(),
                     ]
                 );
                 if ($inputType == 'multiline') {
@@ -227,4 +227,58 @@ public function getFormValues()
     {
         return [];
     }
+
+    /**
+     * Retrieve frontend classes according validation rules
+     *
+     * @param \Magento\Customer\Api\Data\AttributeMetadataInterface $attribute
+     *
+     * @return string
+     */
+    private function getValidationClasses(\Magento\Customer\Api\Data\AttributeMetadataInterface $attribute) : string
+    {
+        $out = [];
+        $out[] = $attribute->getFrontendClass();
+
+        $textClasses = $this->getTextLengthValidateClasses($attribute);
+        if (!empty($textClasses)) {
+            $out = array_merge($out, $textClasses);
+        }
+
+        $out = !empty($out) ? implode(' ', array_unique(array_filter($out))) : '';
+        return $out;
+    }
+
+    /**
+     * Retrieve validation classes by min_text_length and max_text_length rules
+     *
+     * @param \Magento\Customer\Api\Data\AttributeMetadataInterface $attribute
+     *
+     * @return array
+     */
+    private function getTextLengthValidateClasses(\Magento\Customer\Api\Data\AttributeMetadataInterface $attribute) : array
+    {
+        $classes = [];
+
+        $validateRules = $attribute->getValidationRules();
+        if(!empty($validateRules)) {
+            foreach ($validateRules as $rule) {
+                switch ($rule->getName()) {
+                    case 'min_text_length' :
+                        $classes[] = 'minimum-length-' . $rule->getValue();
+                        break;
+
+                    case 'max_text_length' :
+                        $classes[] = 'maximum-length-' . $rule->getValue();
+                        break;
+                }
+            }
+
+            if (!empty($classes)) {
+                $classes[] = 'validate-length';
+            }
+        }
+
+        return $classes;
+    }
 }

app/code/Magento/Sales/Test/Mftf/Test/AdminSubmitsOrderWithAndWithoutFieldsValidationTest.xml

@@ -0,0 +1,79 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ /**
+  * Copyright © Magento, Inc. All rights reserved.
+  * See COPYING.txt for license details.
+  */
+-->
+<tests xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xsi:noNamespaceSchemaLocation="urn:magento:mftf:Test/etc/testSchema.xsd">
+    <test name="AdminSubmitsOrderWithAndWithoutFieldsValidationTest">
+        <annotations>
+            <features value="Sales"/>
+            <stories value="Create orders"/>
+            <title value="Fields validation is required to create an order from Admin Panel"/>
+            <description value="Admin should not be able to submit orders without invalid address fields"/>
+            <group value="sales"/>
+        </annotations>
+        <before>
+            <createData entity="_defaultCategory" stepKey="createCategory"/>
+            <createData entity="_defaultProduct" stepKey="createSimpleProduct">
+                <requiredEntity createDataKey="createCategory"/>
+            </createData>
+        </before>
+        <after>
+            <deleteData createDataKey="createSimpleProduct" stepKey="deleteProduct"/>
+            <deleteData createDataKey="createCategory" stepKey="deleteCategory"/>
+            <amOnPage url="admin/admin/auth/logout/" stepKey="amOnLogoutPage"/>
+        </after>
+        <!--Create order via Admin-->
+        <actionGroup ref="LoginAsAdmin" stepKey="loginAsAdmin"/>
+        <comment userInput="Admin creates order" stepKey="adminCreateOrderComment"/>
+        <!--<actionGroup ref="navigateToNewOrderPageNewCustomer" stepKey="navigateToNewOrderPage"/>-->
+        <amOnPage url="{{AdminOrdersPage.url}}" stepKey="navigateToOrderIndexPage"/>
+        <waitForPageLoad stepKey="waitForIndexPageLoad"/>
+        <see selector="{{AdminHeaderSection.pageTitle}}" userInput="Orders" stepKey="seeIndexPageTitle"/>
+        <click selector="{{AdminOrdersGridSection.createNewOrder}}" stepKey="clickCreateNewOrder"/>
+        <click selector="{{AdminOrderFormActionSection.CreateNewCustomer}}" stepKey="clickCreateCustomer"/>
+        <see selector="{{AdminHeaderSection.pageTitle}}" userInput="Create New Order" stepKey="seeNewOrderPageTitle"/>
+
+        <!--Check if order can be submitted without the required fields including email address-->
+        <actionGroup ref="checkRequiredFieldsNewOrderForm" stepKey="checkRequiredFieldsNewOrder" after="seeNewOrderPageTitle"/>
+        <scrollToTopOfPage stepKey="scrollToTopOfOrderFormPage" after="checkRequiredFieldsNewOrder"/>
+        <actionGroup ref="addSimpleProductToOrder" stepKey="addSimpleProductToOrder" after="scrollToTopOfOrderFormPage">
+            <argument name="product" value="_defaultProduct"/>
+        </actionGroup>
+
+        <!--Fill customer group and customer email-->
+        <selectOption selector="{{AdminOrderFormAccountSection.group}}" userInput="{{GeneralCustomerGroup.code}}" stepKey="selectCustomerGroup" after="addSimpleProductToOrder"/>
+        <fillField selector="{{AdminOrderFormAccountSection.email}}" userInput="{{Simple_US_Customer.email}}" stepKey="fillCustomerEmail" after="selectCustomerGroup"/>
+
+        <!--Fill wrong customer address information-->
+        <actionGroup ref="fillOrderCustomerInformation" stepKey="fillCustomerAddress" after="fillCustomerEmail">
+            <argument name="customer" value="Simple_US_Customer"/>
+            <argument name="address" value="US_address_TX_Wrong_Validation"/>
+        </actionGroup>
+        <!-- Select shipping -->
+        <actionGroup ref="orderSelectFlatRateShipping" stepKey="selectFlatRateShipping" after="fillCustomerAddress"/>
+
+        <!--Verify totals on Order page-->
+        <see selector="{{AdminOrderFormTotalSection.total('Subtotal')}}" userInput="${{AdminOrderSimpleProduct.subtotal}}" stepKey="seeOrderSubTotal" after="selectFlatRateShipping"/>
+        <see selector="{{AdminOrderFormTotalSection.total('Shipping')}}" userInput="${{AdminOrderSimpleProduct.shipping}}" stepKey="seeOrderShipping" after="seeOrderSubTotal"/>
+        <scrollTo selector="{{AdminOrderFormTotalSection.grandTotal}}" stepKey="scrollToOrderGrandTotal"/>
+        <see selector="{{AdminOrderFormTotalSection.grandTotal}}" userInput="${{AdminOrderSimpleProduct.grandTotal}}" stepKey="seeCorrectGrandTotal" after="scrollToOrderGrandTotal"/>
+
+        <!--Submit Order and verify information-->
+        <click selector="{{AdminOrderFormActionSection.SubmitOrder}}" stepKey="clickSubmitOrder" after="seeCorrectGrandTotal"/>
+        <see selector="{{AdminOrderFormBillingAddressSection.firstNameError}}" userInput="Please enter less or equal than 255 symbols." stepKey="firstNameError" after="clickSubmitOrder"/>
+
+        <!--Fill correct customer address information-->
+        <actionGroup ref="fillOrderCustomerInformation" stepKey="fillCustomerAddress" after="firstNameError">
+            <argument name="customer" value="Simple_US_Customer"/>
+            <argument name="address" value="US_address_TX"/>
+        </actionGroup>
+        <!--Submit Order and verify information-->
+        <click selector="{{AdminOrderFormActionSection.SubmitOrder}}" stepKey="clickSubmitOrder" after="fillCustomerAddress"/>
+        <seeInCurrentUrl url="{{AdminOrderDetailsPage.url}}" stepKey="seeViewOrderPage" after="clickSubmitOrder"/>
+        <see selector="{{AdminOrderDetailsMessagesSection.successMessage}}" userInput="You created the order." stepKey="seeSuccessMessage" after="seeViewOrderPage"/>
+        </test>
+    </tests>